gardner



(No Model.) 2 Sheets-Sheet 1. R. J. GARDNER. Drag Sawng Machines No. 230,766. Patented Aug. 3,1880.

Ilm "muuu umhlllllmimuluum |ll I lll WITN E# E: INJENTDH- yw/ J Garrezzel';

a. t e e. h s, e e .n s 2 am .e R. m Ew Na DM Rg An. Gi .WA Ja Rg n r D* u d o M o w.

Patented Aug. 3, 1880'.

ffy-2- N. PETERSA PHOTO LITNOLRAPMER ASH NBTDN D C UNITED STATEs ATENT rrrcn.

ROBERT J. GARDNER, OF ROOKDALE, TEXAS, ASSIGOR OF ONE-THIRD OF HIS RIGHT TO W. L. LUTNER AND JOSEPH HOOK, OF SAME PLACE.

DRAG-SAWING IVIACHINE.

SPECIFICATION forming part of Letters Patent No. 230,766, dated AAugust 3, 1880. Application filed March 12, 1880. (No model.)

To all whom it may concer-n:

Beit known that I, ROBERT J. GARDNER, a citizen ofthe United States, residing at Rockdale, in the county ot' Marlin, State of Texas, have invented new and usei'nl Improvements in DragSawing Machines, of which the following is a specification.

This invention relates to an improvement in sawing-machines adapted for using both cirro cular and reciprocating saws, and especially designed for general sawing in cabinet-m akers and carpenters shops, its object being to provide for the proper guiding and support ot' the reciprocating saw and for the ready adjustment and tirm maintenance otl the articles to be sawed in proper position for the action of said saw.

In the accompanying drawings, Figure l is a plan View ot' my improved sawing-machine. 2o Fig. 2 is a side elevation of the same. Fig. 3 is a detail view, illustrating the devices for (logging or holding` the work for the reciprocating saw. Fig. 4 is a detached view of one ofthe dogs.

The letter A indicates the bench or table supporting the various Working parts of the machine and itselfn supported by legs a. Near one end of this table a belt-wheel, B, is mounted on a shaft, O,journaled in bearings 3o supported by upwardly-projecting standards,

the edge of said wheel extending through a slot in the table, and on the projecting ends of this shaft respectively are mounted avflywheel, E, which hangs beyond the edge of the 3 5 table, and a wheel. F, located over about the longitudinal center of the table, and provided with a wrist-pin,f, to which is connected a pitman, G, the opposite end of which is pivoted toa reciprocating saw, H, which plays in 4o and beyond alongitudinal slot, h, and athwart the end of an extension, A', of the table, the top of said extension being somewhat lower than the top of the main table, and provided with work-clamps, which will be hereinafter l described.

Near the end of the table A, opposite the belt-wheef` B, a shaft, I, is mounted transversely under the table in bearings supported by or formed in hangers i, secured to the lower 5o surface ofthe table. Upon this shaft I is fixed a belt-pulley, K, projecting through a slot in the table. In the present instance, but not necessarily, said pulley is connected by a belt, q, with the belt-wheel g.

Upon or near the end ot' the shaft l, which 55 projects beyond the side ot' the main table A, a circularl saw, L. is iixed, and plays through a slot or recess, l, formed in the edge of the top ot' a side extension, A, of the main table A. Upon the top ot' this extension A is ar- 6o ranged guide-gage M, adjustable laterally in the ordinary manner by means of slots and screws and nuts m, and upon the main table is arranged a similar guide-gage, M. The timbers or boardsto be sawed by the circular saw L are i'ed in the direction ofthe arrow hetween the gages M and M', and the relative positions of these gages determine the line of cut.

One of the gages maybe used alone, ofcourse, in the ordinary manner. o

In the top of' the said extension A of the main table are formed slots or recesses, in which play screw-rods N, passing through fixed nuts a at the edge of said extension, and provided with suitable hand-Wheels a. To the plain inner tips of these screw-rods are jointed the lower ends of arms O, which project through the slots or grooves and above the top of the extension, and from the end edge ot the main table A arms 0 project upward, standing in 8c, line with the arms O.

The timbers or boards, as at P, to be sawed by the reciprocating saw are laid upon the eX- tension A, with their ends or portions to be sawed off projecting under the saw the proper 8 5 distance.

The arms O are arranged to hold the timbers at an exact right angle to the path of the saw in order that a true and square out may be made; but by arranging suitably-formed ob- 9o lique blocks between the arms O and the timber of. course said timbers may be sawed obliquely, as in the case of rafters.

Near the open end ofthe sloth, in which the reciprocating saw plays, and on each side of the said slot, are arranged standards RR', the inner edges of which are straight and project toward the longitudinal center of the slot, these straight edges serving as guides for the saw G, which plays between them, and the roo upper edge only of which they embrace, leaving the lower edge free in order that the teeth may not be interfered with and may be set laterally to any extent desired. The standard It is adjustable by means of a screw, r, passing through the top of the table, in order to provide for Various thicknesses of saws.

It will be understood that the reciprocating and circular saws are not ordinarily to be used at the same time. When the circular saw is to be used alone the pitman Gr is detached from the wrist-pin of' wheel F and the reciprocating saw removed, and when the reciprocating saw is to be used alonethe belt g is simply thrown ot't' the left wheel.

When heavy timbers are to be sawed bythe reciprocating saw the screws and arms O may be removed from the extension A, and dogs S, as shown in Fig. il, arranged upon screwrods T, as shown in Fig. 3, jointed to the end ol" table A, may be used, the upward-turned ends S of the dogs being turned toward the saw and serving' to guide the same.

I am aware that sawing-machines have been constructed having rotary and reciprocating` saws for alternate operation, and that such machines have been provided with screwclamps for holding the workin position for the action of the reciprocating saws, and I lay no claim to such machines, broadly, nor to such clamps.

l am also aware that a reciprocating sawing-machine has been provided with frictioni rollers, between which its saw plays and is guided; but such rollers embrace the entire width of the saw, and therefore interfere with the saw-teeth, or to avoid contact with said teeth must be placed so far apart as to preclude their service for accurately guiding the saw, while'in y improved guides may embrace the upper portion of the saw-blade as closely as desired and do not interfere with the teeth.

I do not claim, broadly, guides between which a reciprocating saw plays; but,

Having now described my invention, I claiml. The combination, with the table A, provided with the slot h, and the reciprocating saw playing in said slot, of the straight-edged arms R R', embracing the upper edge only ot' the said saw, one of said arms being adjustable, substantially as and for the purpose setforth.

2. The combination, with the main table A and the extension A for the support of the work, ot' the screw-rods T, loosely attached to the main table, and the dogs S, arranged upon said screw-rods and provided with the upward-projecting ends S', substantially as and for the purpose set forth.

In testimony whereofI have hereunto set my hand in the presence of two subscribing witnesses.

It. J. GARDNER.

Vitnesscs J AMES L. Nouars, ALBERT I-I. NoRRrs. 

